height=eval(input("请输入身高（cm）："))
weight=eval(input("请输入体重（kg）："))
BMIValue=weight/(height**2)
if 0<BMIValue<18.5:
    print("过轻,BMI值为：",BMIValue)
elif 18.5<=BMIValue<25:
    print("正常,BMI值为：",BMIValue)
elif 25<=BMIValue<28:
    print("过重,BMI值为：",BMIValue)
elif 28<=BMIValue<32:
    print("肥胖,BMI值为：",BMIValue)
else:
    print("严重肥胖,BMI值为：",BMIValue)